First time here? Check out the FAQ!
Hi there! Please sign in
help
faq
tags
users
badges
This forum is disabled, please visit
https://forum.opencv.org
ALL
UNANSWERED
Ask Your Question
RSS
Sort by »
date
activity
answers ▲
votes
29,830 questions
Tagged
5k
views
3
answers
2
votes
2015-01-03 23:55:21 -0600
jiarongkoh
ndk-build not found in PATH
build
9k
views
3
answers
no
votes
2015-01-19 17:16:33 -0600
pmdev
How to use KNearest and ANN in OpenCV 3.0
KNearest
ann
CvKNearest
trainData
3k
views
3
answers
1
vote
2015-02-17 08:42:28 -0600
Abdul Mukheem
Error: install openCV-3.0.0-beta on Ubuntu 14.10
opencv
ubuntu
build
install
2k
views
3
answers
1
vote
2016-10-27 03:51:12 -0600
gfx
[Solved] find all the cards that are above and their center
c++
multiple
object
detection
Noteworthy_Content
13k
views
3
answers
1
vote
2015-10-05 14:14:25 -0600
sturkmen
Gap Filling Contours / Lines
morphologyex
Morphological
lines
FindContour
Noteworthy_Content
19k
views
3
answers
3
votes
2015-10-08 13:35:42 -0600
pklab
ROI, always a rectangle?
roi
mask
Noteworthy_Content
13k
views
3
answers
1
vote
2016-11-15 09:44:59 -0600
mannyglover
OpenCV Error: Bad argument (Unknown array type) in cvarrToMat
cvarrToMat
5k
views
3
answers
no
votes
2015-07-29 13:29:49 -0600
lefsky
read camera image incorrect
videocapture
12k
views
3
answers
1
vote
2015-06-01 03:30:13 -0600
sturkmen
How to remove text region in a document image?
image-processing
14k
views
3
answers
2
votes
2015-02-19 12:15:14 -0600
SimonH
Error Opencv4Android: Caused by: java.lang.IllegalArgumentException: Service Intent must be explicit
opencv4android
Service
Intent
must
be
explicit
481
views
3
answers
1
vote
2015-02-09 02:28:31 -0600
thdrksdfthmn
Watershed. Basic question
watershed
24k
views
3
answers
2
votes
2018-08-27 02:43:21 -0600
StevenPuttemans
Counting the Total number of Frames in a video file ?
H264
7k
views
3
answers
1
vote
2015-02-19 16:16:38 -0600
TrustMeImAnEngineer
Sine or Cosine of every element in Mat (c++)
Trigonometry
sincos
matrix
sine
cosine
Noteworthy_Content
680
views
3
answers
no
votes
2015-02-23 03:49:14 -0600
KansaiRobot
Separating elements
separating
elements
8k
views
3
answers
2
votes
2015-02-26 06:27:07 -0600
berak
Draw lines from centroid of contour at given angle till edge of contour
python
contours
Line
Perfect_Solution
Noteworthy_Content
1k
views
3
answers
1
vote
2015-10-24 17:46:19 -0600
Sonny
OpenCV 3.0 BETA - can't open video files
opencv-3.0.0
videocapture
isopened
19k
views
3
answers
1
vote
2017-10-23 12:26:04 -0600
berak
OpenCV 3.0.0, FaceRecognizer and Python Bindings
opencv
FaceRecognizer
attributeerror
cv2
python
4k
views
3
answers
1
vote
2015-03-16 08:07:53 -0600
FooBar
How could i detect a color?
colortracking
c++
opencv
Color
histogram
6k
views
3
answers
3
votes
2015-03-20 04:33:22 -0600
StevenPuttemans
traincascade : openMP vs Intel's TBB ?
openmp
tbb
opencv
2k
views
3
answers
no
votes
2017-11-09 02:42:19 -0600
KansaiRobot
Pattern Matching (specific question)
pattern
matching
4k
views
3
answers
1
vote
2015-06-05 20:43:49 -0600
theodore
Line segment detection Near horizontal
houghlinesp
lines
segment
detection
7k
views
3
answers
2
votes
2015-04-28 01:11:12 -0600
Spark
Is HSV supposed to look extremely blotchy in opencv?
HSV
Noteworthy_Content
17k
views
3
answers
5
votes
2016-02-24 05:43:49 -0600
sturkmen
IP camera video corruption - solutions?
H264
ipcam
decode
Network
camera
Video
5k
views
3
answers
no
votes
2018-01-05 11:38:27 -0600
mustinba
Detect markers position in 2D images
markerDetection
marker
position
2d-image
3k
views
3
answers
no
votes
2015-04-28 05:49:39 -0600
essamzaky
IplImage convertion to Mat
conversion
c++
IplImage
Mat
3k
views
3
answers
no
votes
2018-08-24 09:48:35 -0600
Ryo Kawamura
Any image labeling tool for object detection?
machine-learning
object-detection
object-recognition
image-labeling
2k
views
3
answers
1
vote
2020-07-21 15:32:41 -0600
necip
Android app Force closed by memory leak
android
inRange
force
closed
21k
views
3
answers
no
votes
2015-06-04 08:44:31 -0600
valentine
ACCESS MASK AMBIGUOUS SYMBOL
opencv3.0rc1
4k
views
3
answers
no
votes
2018-02-14 09:56:02 -0600
inn@nav8
OpenCV IDE for developemnt
IDE#OPENCV#Windows
7k
views
3
answers
no
votes
2015-06-18 12:22:50 -0600
jonlwowski012
Finding Leftmost and Rightmost Edge of Binary Image
edge-detection
python
binary
« previous
1
...
984
985
986
987
988
...
995
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
Noteworthy_Content
×6
opencv
×4
c++
×3
python
×3
build
×2
detection
×2
H264
×2
lines
×2
videocapture
×2
2d-image
×1
android
×1
ann
×1
attributeerror
×1
be
×1
binary
×1
camera
×1
closed
×1
Color
×1
colortracking
×1
contours
×1
conversion
×1
cosine
×1
cv2
×1
cvarrToMat
×1
CvKNearest
×1
decode
×1
edge-detection
×1
elements
×1
explicit
×1
FaceRecognizer
×1
FindContour
×1
force
×1
histogram
×1
houghlinesp
×1
HSV
×1
IDE#OPENCV#Windows
×1
image-labeling
×1
image-processing
×1
inRange
×1
install
×1
Intent
×1
ipcam
×1
IplImage
×1
isopened
×1
KNearest
×1
Line
×1
machine-learning
×1
marker
×1
markerDetection
×1
mask
×1
Copyright
OpenCV foundation
, 2012-2018. Content on this site is licensed under a
Creative Commons Attribution Share Alike 3.0
license.
Powered by Askbot version 0.10.2
Please note: OpenCV answers requires javascript to work properly, please enable javascript in your browser,
here is how
dummy
×